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IBM Data and AI Ideas Portal for Customers


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Status Delivered
Created by Guest
Created on Dec 17, 2019

Allow REPAIR CATALOG on indexes to reset version numbers

Allow REPAIR CATALOG on indexes to reset version numbers

In Db2 Cloning Tool, index version mismatches cause indexes to be rebuilt on the target rather than using the physical copy. Some of these indexes are very large. Corrective measures would be to drop and recreate the index on the source which would not be possible. If the version number could be set to a value matching the source in a non-invasive fashion this would alleviate the long duration of these index rebuilds. In Db2 today, this is possible for tablespaces which will repair the catalog version numbers to a value matching the underlying page set.

Rebuild Index is a huge resource hog on the z/Machines. 

All 5 Customers Systems  and 6 DBAs that manage it at Duke Energy using the IBM Cloning tool for Db2 on z/OS are impacted. 

Needed by Date Jan 31, 2020
  • Admin
    May Chu
    Apr 3, 2020

    The requested capability already exists. REPAIR CATALOG supports indexes and will correct version information in indexes. It does not perform schema validation however. If this requirement is for Cloning Tool to exploit REPAIR CATALOG then a requirement should be entered against the Cloning Tool product.